GPU comparison · 1080p benchmark
Compare RX 580 8GB and RX 6600 8GB using GPUsed's recorded model-level benchmark FPS. See the percentage difference, then open the full comparison tool if you want to choose another card.
RX 6600 8GB recorded 133 FPS against 79 FPS for RX 580 8GB. These are continuous 1080p benchmark averages, not predicted FPS in any particular game.
RX 580 8GB
79Benchmark FPS at 1080p- Benchmark score
- 10.1 / 100
- Graphics memory
- 8GB
- Released
- April 2017
RX 6600 8GB
133Benchmark FPS at 1080p- Benchmark score
- 17 / 100
- Graphics memory
- 8GB
- Released
- October 2021
Change either GPU in the comparison tool
What does this comparison mean?
The RX 6600 offers a substantial measured gain over the RX 580 while both are 8GB. This shows why equal memory figures do not imply equal speed.
Both variants have 8GB of graphics memory. Memory capacity, board dimensions, power connectors and the price of a particular used card are separate from this benchmark. Compare the exact item before deciding whether to upgrade.
The two GPUs in context
RX 580 8GB
The 8GB RX 580 refined the RX 480's mainstream formula and kept a generous buffer in a widely useful gaming class. It was an evolutionary refresh rather than a breakthrough, but retained a stronger long-term role than many similar cards.
RX 6600 8GB
The 8GB RX 6600 scaled RDNA 2 down to an efficient 1080p card with a useful memory buffer. Its original price was not transformative, yet its lower power and practical gaming role gave it a clear place in the family.
Release dates: RX 580 8GB source · RX 6600 8GB source.
How the figures are compared
Both FPS figures come from the owner-supplied GPUsed benchmark dataset. GPUsed reports a continuous FurMark run at 1080p for its physical-card checks. The percentage above compares the higher model average with the lower one; the score scales every model against the fastest GPU in the current dataset, which scores 100. A benchmark result does not predict gaming FPS, and the percentage may change with the benchmark dataset.